Defensive publication



a? gel DEFENSIVE PUBLICATION 7 UNITED STATES PATENT OFFICE Published atthe request of the applicant or owner in accordance with the Notice ofApr. 11, 1968, 849 0G. 1221. Identificatlon is by serial number of theapplication and the heading indicates the number of pages ofspecification, including claims, and of sheets of drawing contained inthe application as originally filed. The file of this application isavailable to the public for inspection; reproduction may be purchasedfor 30 cents per sheet.

Applications published under the Defensive Publication Program have notbeen examined as to the merits of alleged invention. The Patent Oflicemakes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED APRIL 15, 1969 CONTACTING OIL SHALE OR SHALE OIL WITH ASOLVENT TO PRODUCE MATERIAL SUITABLE FOR HYDROFINING Robert B. Long, 249E. Highland Ave., Atlantic Highlands, NJ. 07716, Herman J. Solomon, 40Watson Ave., Apt. 24, Elizabeth, NJ. 07202, and Homer J. Hall, 310Prospect Ave., Cranford, NJ. 07016 Filed Jan. 25, 1968. Published Apr.15, 1969 Class 20811 2 Sheets Drawing. 12 Pages Specification MAKE-UP 12SOLVENT SCS SETTLER A This disclosure relates to a process for refiningoil shale or shale oil. In one embodiment, ground oil shale is extractedwith a mixture of a polar and a non-polar solvent at supercriticalconditions including a temperature in the range of 90500 F. and apressure in the range of 750- 5000 p.s.i.a. to provide a shale oilextract phase. In another embodiment a fraction of shale oil from shaleretorting is extracted with a non-polar solvent at supercriticalconditions including a temperature in the range of 210- 420 F. and apressure in the range of 800-3500 p.s.i.a to provide a shale oil extractphase having a reduced content of heteroatomic compounds suitable forsubsequent hydrofining. Optimum conditions for the supercriticalseparation step will depend upon the critical temperature of thesolvent(s) and the molecular type distribution of the feed. Suitablenon-polar solvents include ethane, propane, butane, pentane, hexane,ethylene, propylene, butylene, cyclohexane, benzene, decalin, tetralin,etc. Suitable polar solvents include ammonia, methyl amines, nitrousoxide, sulfur dioxide, methyl chloride, dimethyl ether, methyl alcohol,formaldehyde and acetone.

'L T SN 7U0 i89 DEF. PUB. CONTACTING OIL SHALE OR SHALE OIL WITH ASOLVENT T0 April 15, 1969 R. a. LONG ET AL PRODUCE MATERIAL SUITABLE FORHYDROFINING Filed Jan. 25, 1968 I of 2 Sheet $55 2 E 025%? ZD 6+0 w E52Um N( O r/d m B Iw 1o .F mm IU/ Ema j 2 n N 0 L u 3 w :z: 2 Stun mum Y em m n m m m m. .m m y m N M m GOL M N N wwH B LL Y RHH B W SN 700 489DEF. PUB.

April 15,' 1969 R. B. LONG ETA!- CONTACTING OIL SHALE OR SHALB OIL WITHA SOLVENT TO PRODUCE MATERIAL SUITABLE FOR HYDROFINING Filed Jan. 25,1968 Sheet w wmzom :2: NE $25 3% s :2: :7 552mg 49 055% GT 830m 0 3205228 QN /QOF m2 8 E m: 2 59%. mzoN 0: 2: 292255 i8. msotom 3n H M o 295 O 02295:: z 2. 2a e 8a 6. m oll 2. Hi; :0 2: 02509.91 2889: r

R. B. LONG H. J. SOLOMON H. J. HALL Patent Attorney

